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Andreas Dierdorf
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Frankfurt, DE
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last 30 patents
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Patent Grant
Nitro compound-reducing process
Patent number
6,054,617
Issue date
Apr 25, 2000
Clariant GmbH
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 3-acetoxy-2-methylbenzoyl chloride
Patent number
6,051,732
Issue date
Apr 18, 2000
Clariant GmbH
Robert Cosmo
C07 - ORGANIC CHEMISTRY
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Patent Grant
Process for the preparation of 3-hydroxy-2-methylbenzoic acid and 3...
Patent number
5,910,605
Issue date
Jun 8, 1999
Clariant GmbH
Robert Cosmo
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of N-carboxymethyleneanthranilic acid
Patent number
5,811,572
Issue date
Sep 22, 1998
Hoechst Aktiengesellschaft
Theodor Papenfuhs
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydroxycarboxylic acid anilides
Patent number
5,712,414
Issue date
Jan 27, 1998
Hoechst Aktiengesellschaft
Andreas Dierdorf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of O-acylglycolanilides
Patent number
5,705,680
Issue date
Jan 6, 1998
Hoechst Aktiengesellschaft
Andreas Dierdorf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of o-acyloxycarboxanilides
Patent number
5,693,852
Issue date
Dec 2, 1997
Hoechst Aktiengesellschaft
Andreas Dierdorf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of hydroxycarboxanilides
Patent number
5,631,403
Issue date
May 20, 1997
Hoechst AG
Andreas Dierdorf
C07 - ORGANIC CHEMISTRY